GlobalSync AI is committed to transparency, reliability, and data integrity. This page outlines the specific time zone, exchange rate, and scheduling data sources used to power our utilities, along with details on update frequencies and methodology.

Time Zone Data Sources

All time zone calculations, offsets, and daylight saving time (DST) transitions are computed using the official IANA Time Zone Database (tzdata). This database is the authoritative global standard used by major operating systems (including Linux, macOS, and Android), databases, and web browsers to maintain accurate, up-to-date regional clock offsets.

Currency Exchange Rate Sources

Currency conversions use live market rates (Coinbase public rate feed), each checked against ExchangeRate-API daily reference rates. Each result shows the time it was taken. A reference rate does not include transfer-provider fees or guarantee the amount received.

Data Refresh Rates and Update Schedules

Live rates refresh every minute. A live quote more than 3% away from the daily reference is ignored and the reference is shown instead. Dated build snapshots are labeled when used offline. Live clocks are synced to our server clock, so a wrong device clock does not skew them. Time zone rules come from your browser’s Intl implementation; keep your browser and operating system up to date. Historical rate data for trend charts is updated once daily.

Accuracy and Limitations

While we strive for absolute precision, financial markets fluctuate constantly, and local governments occasionally implement time zone or daylight saving changes with short notice. The exchange rates displayed are for informational purposes only; they do not include the markup or retail transaction fees that your bank or money transfer operator may charge. For high-value transactions or critical scheduling, we advise verifying data with official banking institutions or local government publications.

How GlobalSync AI Calculates Meeting Overlap

Our Meeting Planner uses a standard, equitable overlap algorithm. By default, it defines "fair working hours" as 9:00 AM to 5:00 PM local time in each participant's zone. The algorithm maps all selected cities to Coordinated Universal Time (UTC), identifies overlapping hours, and generates a visual grid. It calculates a Meeting Overlap Score (from 0 to 100) based on how many participants are within standard working hours, flag-warning users of late-night or early-morning conflicts to promote respectful scheduling.

Learn More & Support

For a deeper dive into our calculations, technology stack, and AI parameters, explore our detailed Methodology Page.

If you have questions about our data feeds, identify a database inaccuracy, or want to suggest a new feature, please get in touch via the Contact Page.